Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1979-09-12
1982-04-20
Groody, James J.
Communications: electrical
Audible indication
Percussion-type sound producer
235145R, 312 72, 340365VL, G06F 302
Patent
active
043261930
ABSTRACT:
A CRT terminal includes a main unit which houses circuitry and the CRT display. An application module which includes a keyboard plugs into the front of the main unit and electrically connects to its circuitry. A flexible membrane keyboard is employed which includes a keyboard overlay that is easily changed to provide keyboard symbols appropriate to a wide variety of different applications. Resilient bumpers extend completely around the main unit to facilitate its use in industrial applications where physical abuse is common.
REFERENCES:
patent: 1355819 (1920-10-01), De Clamecy
patent: 3381276 (1968-04-01), James
patent: 3394368 (1968-07-01), Carr et al.
patent: 3573749 (1971-04-01), Smith et al.
patent: 3605285 (1971-09-01), Bendaniel et al.
patent: 3717870 (1973-02-01), Mathews et al.
patent: 3921161 (1975-11-01), Baer
patent: 3971925 (1976-07-01), Wenninger et al.
patent: 4107784 (1978-08-01), Van Bemmelen
patent: 4156928 (1979-05-01), Inose et al.
patent: 4208081 (1980-06-01), Kekas et al.
Clark Charles E.
Galdun Daniel J.
Henderson Robert G.
Jencen Frank W.
Markley Theodore J.
Allen-Bradley Company
Groody James J.
LandOfFree
Terminal with interchangeable application module does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Terminal with interchangeable application module, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Terminal with interchangeable application module will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1265368